The Senior Center offers services and activities to the City’s older adult population at its location in the lower level of City Hall. The Senior Center publishes a monthly newsletter which highlights activities and information of interest to seniors. It also offers a wide variety of health, education, nutrition, fitness and recreation programs, as well as the services of state-licensed social workers. Social workers and homemaker assistants also provide services to home-bound residents.

It shall be the mission of the City of Marquette Senior Center to assist members of the community's older adult population to live in an environment of their choosing with the maximum dignity and independence possible.

"A Senior Center is a community focal point where older persons as individuals or in groups come together for services and activities which enhance their dignity,support their independence and encourage their involvement in and with the community. As part of a comprehensive community strategy to meet the needs of older persons, Senior Center programs take place within and emanate from a facility. These programs consist of a variety of services and activities in such areas as education, creative arts, recreation, advocacy, leadership development, employment, health, nutrition, social work and other supportive services. The center also serves as a community resource for training professional and lay leadership and for developing new approaches to aging problems."